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变电站“辐射”大?实测结果:远低于家电
Jing Ji Ri Bao· 2025-06-25 22:00
Core Viewpoint - The article addresses public concerns regarding electromagnetic radiation from substations, clarifying that the electromagnetic fields produced are not harmful and are well within safety standards [1][2]. Group 1: Misconceptions about Electromagnetic Radiation - Public misconceptions equate substations and high-voltage lines with harmful electromagnetic radiation, which is a misunderstanding [1]. - The actual concern should be with high-frequency electromagnetic waves, such as X-rays and mobile signals, rather than the low-frequency fields generated by substations [1]. Group 2: Safety Standards and Measurements - The recommended safety standards for electromagnetic fields near residential areas in China are an electric field strength not exceeding 4000 volts/meter and a magnetic induction strength not exceeding 100 microtesla [2]. - Continuous monitoring shows that the electromagnetic field strength at the boundaries of substations is significantly below these national standards, with typical measurements for 110 kV and 220 kV substations being only a few tens of volts/meter and very low magnetic induction [2]. Group 3: Comparative Analysis with Household Appliances - Measurements taken at a 220 kV substation in Wuhan showed electric field strengths between 2.15 volts/meter and 2.20 volts/meter, and magnetic induction strengths between 0.23 microtesla and 0.30 microtesla, indicating a large safety margin compared to national limits [2][3]. - In comparison, common household appliances such as electric shavers, kettles, and hairdryers exhibit higher electric field strengths than those measured near substations, further demonstrating the low risk associated with substations [3].
俄国防部:乌军两次袭击俄能源基础设施
news flash· 2025-04-08 10:46
俄国防部:乌军两次袭击俄能源基础设施 智通财经4月8日电,俄罗斯国防部发布消息称,乌军过去一昼夜内两次袭击了俄罗斯的能源基础设施, 基辅政权违反俄美达成的决定,继续单方面袭击俄罗斯的能源基础设施。消息称,乌军利用无人机袭击 了位于库尔斯克州的输电线路,以及位于扎波罗热地区的一座变电站,导致上述设施不同程度受损。目 前,乌方对此暂未做出回应。 ...